*{
    margin: 0;
    padding: 0;
}

:root{
    width: 100vw;
    height: 100vh;
    margin: 0;
    padding: 0;
    background-image: url('../public//image//bg-day.png');
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    --text-color: #000000;
    --button-bg-color: #e0e0e0;
    --button-text-color: #000000;
}

.dark-mode{
    width: 100vw;
    height: 100vh;
    margin: 0;
    padding: 0;
    background-image: url('../public//image//shen.png');
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    --text-color: #ffffff;
    --button-bg-color: #303030;
    --button-text-color: #ffffff;
}